Datasheet TC55 (Microchip)

Obsolete Device TC55 1 µA Low Dropout Positive Voltage Regulator Features General Description
• Low Dropout Voltage: 120 mV (typ) at 100 mA, The TC55 Series is a collection of CMOS low dropout, 380 mV (typ) at 200 mA positive voltage regulators that can source up to • High Output Current: 250 mA (V 250 mA of current, with an extremely low input-output OUT = 5.0V) • High Accuracy Output Voltage: ±2% (max) voltage differential of 380 mV (typ) at 200 mA. (±1% Semi-Custom Version) The TC55’s low dropout voltage, combined with the low • Low Power Consumption: 1.1 µA (typ) current consumption of only 1.1 µA (typ), makes it ideal • Low Temperature Drift: ±100 ppm/°C (typ) for battery operation. The low voltage differential (drop- out voltage) extends the battery operating lifetime. It • Excellent Line Regulation: 0.2%/V (typ) also permits high currents in small packages when • Package Options: 3-Pin SOT-23A, 3-Pin SOT-89 operated with minimum VIN – VOUT differentials. and 3-Pin TO-92 The circuit also incorporates short-circuit protection to • Short-Circuit Protection ensure maximum reliability. • Standard Output Voltage Options: 1.2V, 1.8V, 2.5V, 3.0V, 3.3V, 5.0V
Functional Block Diagram Applications
VIN VOUT • Battery-Powered Devices • Cameras and Portable Video Equipment Short-Circuit • Pagers and Cellular Phones Protection • Solar Powered Instruments + • Consumer Products –
Package Types
Voltage Reference
3-Pin SOT-23A 3-Pin SOT-89
VIN VIN 3 GND
TC55 TC55
1 2 1 2 3 GND VOUT GND VIN VOUT
3-Pin TO-92
1 2 3 Bottom View GND V V IN OUT
Note:
3-Pin SOT-23A is equivalent to the EIAJ SC-59. © 2005 Microchip Technology Inc. DS21435F-page 1 Document Outline 1.0 Electrical Characteristics 2.0 Typical Performance Curves FIGURE 2-1: Output Voltage vs. Output Current (TC55RP3002). FIGURE 2-2: Output Voltage vs. Input Voltage (TC55RP3002). FIGURE 2-3: Output Voltage vs. Input Voltage (TC55RP3002). FIGURE 2-4: Dropout Voltage vs. Output Current (TC55RP3002). FIGURE 2-5: Output Voltage vs. Operating Temperature (TC55RP3002). FIGURE 2-6: Supply Current vs. Input Voltage (TC55RP3002). FIGURE 2-7: Supply Current vs. Operating Temperature (TC55RP3002). FIGURE 2-8: Load Transient Response (TC55RP3002). FIGURE 2-9: Output Voltage vs. Output Current (TC55RP5002). FIGURE 2-10: Output Voltage vs. Input Voltage (TC55RP5002). FIGURE 2-11: Output Voltage vs. Input Voltage (TC55RP5002). FIGURE 2-12: Dropout Voltage vs. Output Current (TC55RP5002). FIGURE 2-13: Output Voltage vs. Operating Temperature (TC55RP5002). FIGURE 2-14: Supply Current vs. Input Voltage (TC55RP5002). FIGURE 2-15: Supply Current vs. Operating Temperature (TC55RP5002). FIGURE 2-16: Input Transient Response, 1mA (TC55RP5002). FIGURE 2-17: Input Transient Response, 10mA (TC55RP5002). FIGURE 2-18: Load Transient Response (TC55RP5002). 3.0 Pin Descriptions TABLE 3-1: Pin Function Table 3.1 Ground Terminal (GND) 3.2 Regulated Voltage Output (VOUT) 3.3 Unregulated Supply Input (VIN) 4.0 Detailed Description 4.1 Output Capacitor 4.2 Input Capacitor 5.0 Thermal Considerations 5.1 Power Dissipation 6.0 Packaging Information 6.1 Package Marking Information Worldwide Sales and Service Trademarks Worldwide Sales